Mailspring – Autostart on Xubuntu

Create a desktop entry ~/.config/autostart/mailspring.desktop

[Desktop Entry]
Name=Mailspring
Type=Applicaton
Exec=mailspring --background

Or add a new entry to Session and startup list

Xubuntu – Screensaver – Slideshow from folder

• Install XScreenSaver
• Set the folder to read the images from
• Set the screensaver to GLSlideShow
  
• Tweak the parameters as needed
  
• Add a new entry in ~/.config/autostart/xcreensaver.desktop

  [Desktop Entry]
  Name=Screensaver
  Type=Applicaton
  Exec=xscreensaver -nosplash
  

• To manually lock the screen and start the screensaver, run

  xscreensaver-command -lock